[  504.248842] bond0: (slave eth0): making interface the new active one
[  504.248932] bond0: (slave eth0): Enslaving as an active interface with an up link
[  508.442254] bond0: (slave eth0): Releasing backup interface
[  508.518400] bond0: (slave eth0): Enslaving as an active interface with an up link
[  512.671486] bond0: (slave eth0): Releasing backup interface
[  512.697226] bond0 (unregistering): Released all slaves